This beautiful holy city is a spiritual lightning rod and sacred to Jews, Muslims and Christians all over the world. Although Jerusalem is known primarily for its religious history, the city is also home to many artistic and cultural venues.

Colca Canyon, located in southern Peru’s Arequipa region, is one of the deepest canyons in the world, twice as deep as the Grand Canyon in some areas. What makes it stand out even more is how human settlements have coexisted with the landscape for centuries. Along its walls, pre-Inca agricultural terraces still hold crops like corn and quinoa. One of the main draws of the canyon is the opportunity to see Andean condors in flight.

West of Hiawatha National Forest, Marquette sits on the shore of Lake Superior and is the biggest city on Michigan's Upper Peninsula. Visit historic Marquette Harbor Lighthouse for spectacular panoramic views of Superior, or take advantage of snowy Marquette Mountain and a variety of winter sports at the height of Marquette's winter season.

Lake Toba is another of the island's spectacular sights - a remarkable volcanic crater set in the middle of northern Sumatra, 176km from Medan. The lake is huge (the largest in South-East Asia), occupying the caldera of a giant volcano that collapsed on itself after a massive eruption some 100,000 years ago.

Located northwest of Cairo on the Mediterranean coast, Alexandria is one of Egypt's most spectacular cities and an important historical, industrial, and economic center for the country.